Abstract
In this study, Kozo fibres were fibrillated using the stone wet milling method and the wet atomisation method both deriving from nanocellulose production processes. Kozo fibres with a high degree of external fibrillation were obtained by using the stone mill wet grinding method. Although fibres exhibited the same structure as untreated Kozo fibres, their bonding properties improved. Applying the wet atomisation method, fibrillated Kozo fibres with different degrees of fibrillation were obtained depending on the number of treatments. Fibrillated Kozo fibres can be used in conservation as an adhesive for lining and other stabilisation treatments and may in certain cases replace starch paste, which is susceptible to microbiological damage. Only Kozo fibres and water were used in both mechanical fibrillation methods; therefore, the resulting material can be considered a safe alternative to more traditional adhesives.
Zusammenfassung
Kozo-Fasern wurden mittels Nassmahlmethode bzw. Nasszerstäubungsmethode, die beide für die Herstellung von Nanocellulose eingesetzt werden, fibrilliert. Mit der Nassmahlmethode wurden Kozo-Fasern mit einem hohen Grad an äußerer Fibrillierung gewonnen. Obwohl die erhaltenen Fasern die gleiche Struktur wie unbehandelte Kozo-Fasern aufwiesen, verbesserten sich ihre Klebeeigenschaften. Bei der Nasszerstäubungsmethode wurden Kozo-Fasern mit unterschiedlichen Fibrillierungsgraden, die von der Anzahl der Behandlungen abhingen, produziert. Fibrillierte Kozo-Fasern können als Klebstoff in der Papierrestaurierung eingesetzt werden und könnten in manchen Fällen Stärkekleister ersetzen, der anfällig für mikrobiellen Befall ist. Bei beiden mechanischen Fibrillierungsmethoden wurden nur Kozo-Fasern und Wasser verwendet, so dass das resultierende Material als gesundheitlich unbedenklich eingestuft werden kann.
Funding source: Japan Society for the Promotion of Science
Award Identifier / Grant number: 18K18524
Acknowledgement
This research was supported by the JSPS KAKENHI (grant number: 18K18524). We would also like to thank Professor Hiromi Uchimura of Ehime University for lending us the MassColloider device for this research, Yusei Saeki of Handakyuseido Co., Ltd for the haptic evaluation, and Naomi Iwata of Tokyo University of the Arts for the MassColloider experiments.
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